Get New Access Token is adding an Resource

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My question:
I am using a collection for getting oAuth2 token for yammer.
I followed this article - Yammer API with AAD tokens Postman Collection - Microsoft Tech Community
When I try to get a token I get AADSTS901002: The ‘resource’ request parameter is not supported.
My Resource is empty but in Fiddler I can see it’s added a new resource 00000003-0000-0ff1-ce00-000000000000/{{tenantPrefix}}.sharepoint.com@{{TenantID}}
How can I remove it from call
Details (like screenshots):

How I found the problem:

I’ve already tried: